slug: xss
Explanation
XSSは「Webページの中に、攻撃者の悪意あるJavaScriptを忍び込ませる」攻撃です。
例えば掲示板に `<script>盗む()</script>` のような投稿をして、それを見た他のユーザーのCookie (ログイン情報) を盗む、といった攻撃が典型的です。
対策は「ユーザー入力を画面に出すときに、HTMLとして無害化 (エスケープ) する」こと。多くのフレームワークでは標準で対策されています。
Example
2005年MySpaceワーム「Samy」: 1人の投稿が見るだけで他人のプロフィールにコピーされ、24時間で100万人に感染した有名事件。
Related tags
Denial of Service8914
SQL Injection4105
Remote Code Execution3036
Path Traversal2142
Privilege Escalation1586
Cross-Site Request Forgery1115
Server-Side Request Forgery887
Authentication Bypass882
Insecure Deserialization784
Buffer Overflow77
Command Injection28
Use After Free20
Credential Leak14
Prototype Pollution7
Integer Overflow7
Vulnerabilities tagged with this 8,604
- Medium 6.5 Cross-Site Scripting (XSS) in WP Geo Cross-site scripting in WP Geo (CVE-2025-62904). Risk of unauthorized operations or information disclosure. CVE-2025-62904
- Medium 6.5 Cross-Site Scripting (XSS) in WPC Smart Messages for WooCommerce Cross-site scripting in WPC Smart Messages for WooCommerce (CVE-2025-62903). Risk of unauthorized operations or information disclosure. CVE-2025-62903
- Medium 6.5 Cross-Site Scripting (XSS) in Popular Posts by Webline Cross-site scripting in Popular Posts by Webline (CVE-2025-62900). Risk of unauthorized operations or information disclosure. CVE-2025-62900
- Medium 6.5 Cross-Site Scripting (XSS) in ACF Recent Posts Widget Cross-site scripting in ACF Recent Posts Widget (CVE-2025-62894). Risk of unauthorized operations or information disclosure. CVE-2025-62894
- High 7.1 Cross-Site Request Forgery (CSRF) in Multilang Contact Form Vulnerability in Multilang Contact Form (CVE-2025-62896). Risk of unauthorized operations or information disclosure. CVE-2025-62896
- Medium 6.5 Cross-Site Scripting (XSS) in Links shortcode Cross-site scripting in Links shortcode (CVE-2025-62898). Risk of unauthorized operations or information disclosure. CVE-2025-62898
- Medium 5.3 Vulnerability in WP Recipe Maker CVE-2025-62897
- Medium 6.5 Cross-Site Scripting (XSS) in King Addons for Elementor Cross-site scripting in King Addons for Elementor (CVE-2025-62887). Risk of unauthorized operations or information disclosure. CVE-2025-62887
- High 7.1 Cross-Site Request Forgery (CSRF) in Pricing Table builder Vulnerability in Pricing Table builder (CVE-2025-62886). Risk of unauthorized operations or information disclosure. CVE-2025-62886
- Medium 6.5 Cross-Site Scripting (XSS) in WP VR Cross-site scripting in WP VR (CVE-2025-62885). Risk of unauthorized operations or information disclosure. CVE-2025-62885
- Medium 6.1 Cross-Site Scripting (XSS) in VirtueMart 1.0.0-4.4.10 for Joomla was discovered Cross-site scripting in VirtueMart 1.0.0-4.4.10 for Joomla was discovered (CVE-2025-55757). Risk of unauthorized operations or information disclosure. CVE-2025-55757
- Medium 6.4 Cross-Site Scripting (XSS) in The7 — Website and eCommerce Builder for (WordPress theme) Cross-site scripting in The7 — Website and eCommerce Builder for (WordPress theme) (CVE-2025-11897). Risk of unauthorized operations or information disclosure. CVE-2025-11897
- Medium 6.4 Cross-Site Scripting (XSS) in SpendeOnline.org (WordPress plugin) Cross-site scripting in SpendeOnline.org (WordPress plugin) (CVE-2025-11875). Risk of unauthorized operations or information disclosure. CVE-2025-11875
- Medium 4.4 Cross-Site Scripting (XSS) in Fast Velocity Minify (WordPress plugin) Cross-site scripting in Fast Velocity Minify (WordPress plugin) (CVE-2025-12034). Risk of unauthorized operations or information disclosure. CVE-2025-12034
- Medium 6.4 Cross-Site Scripting (XSS) in WordPress Cross-site scripting in WordPress (CVE-2025-10580). Risk of unauthorized operations or information disclosure. CVE-2025-10580
- Medium 6.4 Cross-Site Scripting (XSS) in Testimonial Carousel For Elementor (WordPress plugin) Cross-site scripting in Testimonial Carousel For Elementor (WordPress plugin) (CVE-2025-8666). Risk of unauthorized operations or information disclosure. CVE-2025-8666
- Medium 6.4 Cross-Site Scripting (XSS) in Listeo (WordPress theme) Cross-site scripting in Listeo (WordPress theme) (CVE-2025-8413). Risk of unauthorized operations or information disclosure. Exploitable via soundcloud. CVE-2025-8413
- Medium 6.4 Cross-Site Scripting (XSS) in Gutenberg Blocks – PublishPress Blocks (WordPress plugin) Cross-site scripting in Gutenberg Blocks – PublishPress Blocks (WordPress plugin) (CVE-2025-8588). Risk of unauthorized operations or information disclosure. CVE-2025-8588
- Medium 6.4 Cross-Site Scripting (XSS) in Open Source Genesis Framework (WordPress theme) Cross-site scripting in Open Source Genesis Framework (WordPress theme) (CVE-2025-10737). Risk of unauthorized operations or information disclosure. CVE-2025-10737
- High 7.2 Cross-Site Scripting (XSS) in Watu Quiz (WordPress plugin) Cross-site scripting in Watu Quiz (WordPress plugin) (CVE-2025-11238). Risk of unauthorized operations or information disclosure. Exploitable via Referer header. CVE-2025-11238
- Medium 6.4 Vulnerability in WordPress Hasthemes CVE-2025-11823
- High 8.1 Cross-Site Scripting (XSS) in Plane Cross-site scripting in Plane (CVE-2025-62716). Confidential information can be exposed externally. CVE-2025-62716
- Medium 6.1 Cross-Site Scripting (XSS) in VNPAY Payment gateway (WordPress plugin) Cross-site scripting in VNPAY Payment gateway (WordPress plugin) (CVE-2025-12017). Risk of unauthorized operations or information disclosure. CVE-2025-12017
- Medium 6.4 Cross-Site Scripting (XSS) in Simple Excel Pricelist for WooCommerce (WordPress plugin) Cross-site scripting in Simple Excel Pricelist for WooCommerce (WordPress plugin) (CVE-2025-12096). Risk of unauthorized operations or information disclosure. CVE-2025-12096
- Medium 4.4 Cross-Site Scripting (XSS) in qnotsquiz (WordPress plugin) Cross-site scripting in qnotsquiz (WordPress plugin) (CVE-2025-12016). Risk of unauthorized operations or information disclosure. CVE-2025-12016
- High 7.5 Vulnerability in Quickcreator – AI Blog Writer (WordPress plugin) CVE-2025-11504
- Medium 6.4 Cross-Site Scripting (XSS) in WordPress Cross-site scripting in WordPress (CVE-2025-10701). Risk of unauthorized operations or information disclosure. CVE-2025-10701
- Medium 6.8 Cross-Site Scripting (XSS) in Jeg Kit for Elementor (WordPress plugin) Cross-site scripting in Jeg Kit for Elementor (WordPress plugin) (CVE-2025-9978). Successful exploitation can lead to full system takeover. CVE-2025-9978
- Medium 6.1 Cross-Site Scripting (XSS) in Pleasanter Cross-site scripting in Pleasanter (CVE-2025-58070). Risk of unauthorized operations or information disclosure. CVE-2025-58070
- Medium 5.4 Cross-Site Scripting (XSS) in Pleasanter Cross-site scripting in Pleasanter (CVE-2025-61931). Risk of unauthorized operations or information disclosure. CVE-2025-61931